A high precision plate is placed in a quadrant ( I II III IV quadrants) with two posit
ions, and with direction cosines of the machine coordinate axes X,Y,Z. When inpute X, Y ; YZ; or Z, X
values, then there are output Z ; X ; or Y , Therefore,the difference between the output and the
third axis with own component error will be the synthetical measuring deviation.
At present we create a mathematical model to describe the interaction of the error components
and the synthetical measuring deviation. According to this model, we can obtain the error components
from the synthetic deviation.